Home / 103,490,771.40-155,236,157.10-97,113,479.40

Finding the Fourth Proportional to 103,490,771.40, 155,236,157.10 and 97,113,479.40

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Solution

The fourth proportional to 103,490,771.40, 155,236,157.10 and 97,113,479.40 is: 145,670,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,490,771.40 : 155,236,157.10 = 97,113,479.40 : x
  2. Step 2: Convert to fraction form
    103,490,771.40/155,236,157.10 = 97,113,479.40/x
  3. Step 3: Cross multiply
    103,490,771.40x = 155,236,157.10 × 97,113,479.40
  4. Step 4: Simplify right side
    103,490,771.40x = 15,075,523,344,666,014
  5. Step 5: Solve for x
    x = 15,075,523,344,666,014/103,490,771.40
  6. Step 6: Final answer
    x = 145,670,219.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.